al·​loy | \ ˈa-ˌlȯi How to pronounce alloy (audio) also ə-ˈlȯi How to pronounce alloy (audio) \

Definition of alloy

 (Entry 1 of 2)

1 : the degree of mixture with base metals : fineness
2 : a substance composed of two or more metals or of a metal and a nonmetal intimately united usually by being fused together and dissolving in each other when molten also : the state of union of the components
3a : an admixture that lessens value
b : an impairing alien element
4 : a compound, mixture, or union of different things an ethnic alloy of many peoples
5 archaic : a metal mixed with a more valuable metal to give durability or some other desired quality


al·​loy | \ ə-ˈlȯi How to pronounce alloy (audio) also ˈa-ˌlȯi How to pronounce alloy (audio) \
alloyed; alloying; alloys

Definition of alloy (Entry 2 of 2)

transitive verb

b : to impair or debase by admixture
2 : to reduce the purity of by mixing with a less valuable metal
3 : to mix so as to form an alloy

intransitive verb

: to lend itself to being alloyed iron alloys well

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Examples of alloy in a Sentence

Noun testing the properties of various alloys a part made of aluminum alloy
Recent Examples on the Web: Noun Suspension has been bolstered with Old Man Emu heavy-duty springs and shocks, while the five-spoke Range Rover alloy wheels have been restored to maintain the Classic’s original look. Robert Ross, Robb Report, 6 Sep. 2021 The alloy would have been difficult to produce in pre-modern conditions, said Dr. Guy Demortier, a jewelry-authentication specialist based in Belgium. New York Times, 12 Dec. 2020 Locked underground is billions of dollars in gold, copper, and molybdenum, an important alloy in many types of steel., 9 Sep. 2021 There are differences, though, like the black panel grille that’s a trademark of the EQ line, loads of extra LED lighting and a set of 22-inch aluminum alloy rims. Bryan Hood, Robb Report, 7 Sep. 2021 The exterior features unique 15-spoke, 18-inch aluminum alloy wheels and black mirror caps, while the interior includes special seat tags. Caleb Miller, Car and Driver, 19 July 2021 The Coated Pan pan has five-layers consisting of a copper core surrounded by stainless steel alloy, which give the pan durability, weight and exceptional heat distribution and conductivity. Vanessa Spilios, Forbes, 29 June 2021 The adjustable wrench is hardened and made from tempered drop forged alloy steel. Chris Hachey, BGR, 19 May 2021 The technology might still be too expensive for the entry-level iPad 9, however: The new iPad will also equip with aluminum-alloy chassis that will be processed by PVD. Chris Smith, BGR, 19 Aug. 2021 Recent Examples on the Web: Verb To add a lifting and sculpting boost to your cart, try celebrity esthetician Joanna Czech’s aluminum and zinc alloy facial massager. Akili King, Vogue, 28 May 2021 Steel receivers are easy to drill and tap, alloy receivers, not so much. Phil Bourjaily, Field & Stream, 23 Mar. 2021 Made of alloy steel with a black heat-resistant coating, this pit is rust- and weather-proof. Christine Persaud, USA TODAY, 11 Mar. 2021 To obtain these maximum speeds, manufacturers may use alloy pellets that weigh less than their lead counterparts and, in turn, move much faster. Joseph Albanese, Field & Stream, 2 Mar. 2021 Look for sturdy, alloy frames that are large enough to allow two-handed sawing. The Editors, Field & Stream, 14 Aug. 2019 The N-Line also comes with N sport seats, alloy pedals, and other special touches. Connor Hoffman, Car and Driver, 12 Aug. 2020 The only option package adds antilock brakes and alloy wheels for $1000 (our test car had that package). Steve Spence, Car and Driver, 9 June 2020 Tungsten is normally brittle, so procedures to mechanically process it to increase its strength and to alloy it with other materials to prevent its embrittlement from radiation damage are being studied. Giulia Pacchioni, Scientific American, 26 Aug. 2019

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'alloy.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

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First Known Use of alloy


1593, in the meaning defined at sense 1


1625, in the meaning defined at sense 3

History and Etymology for alloy


French aloi, from Old French alei, from aleir to combine, from Latin alligare to bind — more at ally

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Learn More About alloy

Dictionary Entries Near alloy

alloxuric base



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Statistics for alloy

Last Updated

17 Oct 2021

Cite this Entry

“Alloy.” Dictionary, Merriam-Webster, Accessed 27 Oct. 2021.

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More Definitions for alloy



English Language Learners Definition of alloy

: a metal made by melting and mixing two or more metals or a metal and another material together


al·​loy | \ ˈa-ˌlȯi How to pronounce alloy (audio) , ə-ˈlȯi \

Kids Definition of alloy

: a substance made of two or more metals melted together


al·​loy | \ ˈal-ˌȯi How to pronounce alloy (audio) , ə-ˈlȯi How to pronounce alloy (audio) \

Medical Definition of alloy

1 : the degree of mixture with base metals
2 : a substance composed of two or more metals or of a metal and a nonmetal intimately united usually by being fused together and dissolving in each other when molten also : the state of union of the components

Other Words from alloy

alloy \ ə-​ˈlȯi How to pronounce alloy (audio) , ˈal-​ˌȯi How to pronounce alloy (audio) \ transitive verb

More from Merriam-Webster on alloy

Nglish: Translation of alloy for Spanish Speakers

Britannica English: Translation of alloy for Arabic Speakers Encyclopedia article about alloy


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